Car-ventilator.



G. G. BREIDERT.

GAR VBNTILATOR.

APPLICATION FILED FEB.11, 1909.

' Patented June 1, 1909.

I Ewe/7Z6)? 62 jrep'cierZ I 1 C upon which the ventilator is used.

' GEQRGE C. BREIDERT, OF CHICAGO, ILLINOIS.

CA R-VENTILATOR.

' Specification of Letters Patent.

Patented June 1, 1909.

Application filed February 11, 1909. Serial No. 477,400.

To all whom it may concern:

Be. it known that I, GEORGE C. BREIDERT,

a citizen of the United States, residing atu Chicago, in-the county of Cook and State of Ilhnois, have invented a new and usefulImroyement in Car-Ventilators, of which the ollowingis a specification.

My invention relates co-ram improvement in the class Of ventilators used on the sidewalls-of the clear-story .or upper deck of a railwa -c ar to cause its motion, by the construction of the ventilator, to force air-currents lengthwise through the latter and thereby exert a suction-action in the ventilator to withdrawthrough it vitia ted air out of the car. o 5 The object of my invention is to provide an improved construction of ventilator, of 'the type referred to, to the end of rendering it more effective in its purpose. q. 1 In the accompanying drawing, F gure 1 1s a broken perspective view of a railway-car equipped with ventilators of my improved 9 construction, and Fig. 2 is an enlarged section on line 2, Fig. 1.

The hood 3, which is preferably formed of sheet-metal and of the shape illustrated,

comprises an outwardly curved, longitudi- .na1ly arc-shaped crown 4 with a fiat upper side 5 and an externally concave lower "side or base 15 to adapt it to conform to the shape of the part of the car-roof upon whichit seats.

8 The hood is of general U-shape in cross section, being open at its ends 'and having an open face at which it covers the sash-opening in the side-wall of the clear-story C of a car Series of baflie-plates 6 extend inclinedly into the hood from its opposite ends to form between the members 0 each series inclined air-pas- ,sages 7, in any desired number, depending on the number of baffle-plates employed which is according to the length of the venti- :lator. across the ventilator, being either rigidly These plates reach from side to side fastened in place, or not if it be desired to have them adjustable. As shown, three of the baffle-plates are employed in eachseries and those of each series incline correspondingly, or approximately so, but in contrary direction to those of the other series, whereby the longer innermost plates form between them a V-shaped air-passage 8, open at its "apex, and the shorter intermediate plates and the still shorter. end-plates, which may be slightly curved, as represented, form the and forming spaces between them.

With my ventilator fastened in any suitable manner in place on a car, its motion in either direction, as that indicated by the arrow 11 in Fig. 1, will force air-currents lengthwise through it, as in the direction of the arrow 12. These air currents pass through the hood across the inner ends of the bafile-plates 6 and act to draw the impure air out of the car through the spaces 7, the relation to each other of the plates preventing the fresh air. from blowing into the car through the spaces, and this bafiiing functionbeing enhanced by the curvature of the outer lates. The purpose of the plates 9, 10, 0 which one or more may be provided in each end of the hood, is to so deflect the wind, when blowing in a direction to strike such plates at or ap roximately at a right-angle to them, to eflect the aircurrents in a manner to direct them straightway through the hood, as indicated by the arrows 13 in Fig. 2, and thus cause them to exert the suction-action described and pre- 85 'cars, to be of different lengths and of varying ca acity, the number of sizes commonly provi ed being 24-inch, 30-inch, and 48-inch. The device herein illustrated represents the 30-inch size, requiring three bafiie-plates for each series thereof, while the 24-inch size requires two and the 48-inch size four'of such plates in each series.

\Vhat I claim as new and desire to secure by Letters Patent is 1. A car-ventilator comprising, in combination, a hood with open ends and face, a series of plates extending from one end of the hood between its sides and from its open face inclinedly in one direction toward the crown,

and .a similar series of plates extendin from the opposite end of the hood like said firstname-d series but with its members inclining in the opposite direction, said plates forming between them inclined air-passages and between their inner ends and the hood an airpassage lengthwise throughthe device, for

the purpose set forth. p

2. A ear-ventilator comprising, in combi nation, a'hood with open ends and face, a series of plates extending from one end of the hood between its sides and from its open face inclinedly in one direction, said plates increasing in length in the inward direction of the serles, and a similar series of plates extending from the opposite end of the hood like said first-nanied series but with its members inclining in the opposite direction, said plates forming between them inclined airpassages and between their inner ends and the hood an air-passage lengthwise through the device, forthe purpose set forth.

3. A car-ventilator comprising, in combination, a hood with open ends and face, a

series of plates extending from one end of the hood between its sides and from its open face inclinedly in one direction, the outer mem bers of the series being curved, and a similar series of plates extending from the opposite end of the hood like said first-named series but with its members inclining in the opposite direction, said plates forming between them inclined air-passages and between their inner ends and the hood an air-passage lengthwise through the device, for the purpose set forth.

opposite direction,

4. A car-ventilatorcomprising, in combination, a hood with open ends and face, a series of plates extending from one end of the hood between its sides and from its open face inclinedly in one direction towardthe crown, a similar series of plates extending from the opposite end of the hood like said first-named series, but with" its members inclining in the said plates forming between them. inclined airassages and between their inner ends and the hood an air passage lengthwise through the device, and air-current defiectin ends of said passage, or the purpose set forth.

5. A car-ventilator comprising, in combination, a hood with open ends and face, a series of plates extending from one end of the hood between its sides and fromits open f ace -plates in the opposite' inclinedly in one direction toward the crown, e

said plates increasing in length in the inward direction of' the series, a similar series of plates extending from the opposite end of the hood like said first-named series but with its members inclining in the opposite direction, said platesdorming, between them in-- clined airassages, and ends and t e hood an airassagethrough the device, and air-current eflecting-plates inetween their inner clinin toward the crown inthe opposite ends of sai passage, for the purpose set forth.

GEORGE C. BREIDERT.

In presence of RALPH A. SOHAEFER, A..U. THORIEN. 

